code: def test_no_default_pickle():
      # GH#40397
      obj = tm.round_trip_pickle(lib.no_default)
      assert obj is lib.no_default
  
imports: import numpy
  import pytest
  from pandas._libs import Timedelta, lib, writers
  from pandas.compat import IS64
  from pandas import Index
  import pandas._testing
label_desc: Use image node_id 2 for calling a global function with example usage: test_no_default_pickle() without return types